1994 Johnson/Evinrude Outboards 40 thru 55 Service Manual, Page 257Get this manual

1994 Johnson/Evinrude Outboards 40 thru 55 Service Manual, Page 257

Jet Drive Adjustments Impeller Clearance Adjustment If loss of performance combined with higher than normal wide-open-throttle
impeller down and decrease clearance Moving one shim will reduce clearance approximately 0.004 in(0,1 mm) i and remove all
spark plug leads '" To avoid accidental starting of engine while servicing, twist 3Remove six screws retaining the intake
housing to the jet housingRemove the intake housing f314Bend tab-lock washer ears and remove impeller nut Remove tab-lock
washer and discard f315Remove shims Q), impeller, key, and impeller sleeve from driveshaft6Use flat file and remove any nicks
or burrs from edge of impeller7Transfer one or more shims from bottom to top of impeller Lubricate impeller driveshaft hole,
impeller sleeve, and key with OMC Triple-Guard grease prior to assembling parts 8Place impeller back onto driveshaft, aligning